Ah, OoT, one of the greatest games of all time. What a trip it was to play that in the 90's. The hype was huge, and the final game delivered.
Memorable soundtrack, great set pieces, nice sense of freedom. The number of sidequests may have been low, but the main campaign rivaled its SNES predecessor nicely. The combat mechanics barely changed between games, until motion controls became a thing. They got it right the first time. I know development only took about a year or two, but I'm absolutely sure it was prototyped like crazy before the project officially began. The storyline was perfect, and it created side characters that made the experience more memorable.
The gigaleak even gave us some early layouts and prerenders of areas. Even the elusive (and shiny) Iron Knuckle from the earliest footage was found. I'm glad the dev team redid the Temple of Time in full 3D, since it was such an iconic location in the final. So much polish, I could talk for hours about the game.